sinusoid

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sinusoid

 [si´nŭ-soid]
1. resembling a sinus.
2. a form of terminal blood channel consisting of a large, irregular, anastomosing vessel, having a lining of reticuloendothelium but little or no adventitia. Sinusoids are found in the liver, adrenal glands, heart, parathyroid glands, carotid bodies, spleen, hemolymph glands, and pancreas.

si·nu·soid

(si'nŭ-soyd),
1. Resembling a sinus.
2. Sinusoidal capillary; a thin-walled terminal blood vessel having an irregular and larger caliber than an ordinary capillary; its endothelial cells have large gaps and the basal lamina is either discontinuous or absent.
[sinus + G. eidos, resemblance]

sinusoid

/si·nus·oid/ (si´nŭ-soid)
1. resembling a sinus.
2. a form of terminal blood channel consisting of a large, irregular anastomosing vessel having a lining of reticuloendothelium and found in the liver, heart, spleen, pancreas, and the adrenal, parathyroid, carotid, and hemolymph glands.
Enlarge picture
Sinusoids in a schematic view of a portion of a hepatic lobule.

sinusoid

(sī′nə-soid′, -nyə-)
n.
1. Mathematics See sine curve.
2. Anatomy Any of the venous cavities through which blood passes in various glands and organs, such as the adrenal gland and the liver.

si′nu·soi′dal (-soid′l) adj.
si′nu·soi′dal·ly adv.

sinusoid

[sī′nəsoid]
Etymology: L, sinus + Gk, eidos, form
an anastomosing blood vessel that is somewhat larger than a capillary and is lined with reticuloendothelial cells.

si·nu·soid

(sī'nŭ-soyd)
1. Resembling a sinus.
2. Sinusoidal capillary; a thin-walled terminal blood vessel having a more variable and larger caliber than an ordinary capillary; its endothelial cells have large gaps and the basal lamina is either discontinuous or absent.
[sinus + G. eidos, resemblance]

sinusoid

terminal blood vessel with an irregular and larger calibre than that of a normal capillary

sinusoid

1. resembling a sinus.
2. a form of terminal blood channel consisting of a large, irregular, anastomosing vessel, having a lining of reticuloendothelium but little or no adventitia. Sinusoids are found in the liver, adrenal glands, heart, parathyroid glands, carotid bodies, spleen, hemolymph glands and pancreas.
References in periodicals archive ?
We therefore modify equation (15) in such a way that the proper mass density varies sinusoidally within a homogeneous spherical mass distribution such that:
Once the currents in the basin reach a steady state (after about t = 65 s) in the first test, the free surface elevation at the southern boundary (x = 18 m) is sinusoidally varied with time to generate an incident wave.
Specifically, velocities of forward and transverse displacement are predicted to vary sinusoidally during locomotion, with peak forward velocity occurring in phase with peak rightward and leftward transverse velocities.
The corresponding average for an object with an infinite period of oscillation was calculated from the measurements of static flux by weighting each value at a given pitch angle (an average of 40-65 measurements) by the relative time that the object would spend at that angle were the plate to pitch up and down sinusoidally.
It works by measuring changes in force as a ribbed cylindrical probe follows a sinusoidally oscillating path through the sample held in a vessel.
The system works by measuring changes in force as a ribbed cylindrical probe follows a sinusoidally oscillating path through the sample held in a vessel.
Other investigators have also chosen a similar loading regimen of 0 to 3 times the body weight acting sinusoidally at 1 Hz.
In 1982 in the Publications of the Astronomical Society of the Pacific, he presented a new argument: that the Almagest's errors in the ecliptic latitudes of stars vary sinusoidally around the ecliptic in a manner that could have arisen if Ptolemy stole Hipparchus's star catalog and applied an inadequate precession correction.
5 km/h, or 60 miles/h), (c) passing (vehicles overtaking in the right lane at a rate of one every 50 s, (d) following/passing (a combination of Scenarios b and c), (e) low sinusoidal following (a lead vehicle in the left lane varying its speed sinusoidally between 88.
The changing parameter, wind speed, was sinusoidally varied at several frequencies.
Holmes: one end of a steel beam is allowed to oscillate between two permanent magnets; the other end is externally driven sinusoidally with time.
The farious fields vary sinusoidally, growing and collapsing at their own fixed frequency, and their matching sensors determine only two values: signal amplitude and phase shift.